Plasmon polaritons in photonic metamaterial Fibonacci superlattices

ABSTRACT: We study the properties of plasmon polaritons in one-dimensional photonic metamaterial superlattices resulting from the periodic repetition of a Fibonacci structure. We assume the system made up of positive refraction and metamaterial layers. A Drude-type dispersive response for both the dielectric permittivity and magnetic permeability of the left-handed material is considered. Maxwell’s equations are solved for oblique incidence by using the transfer-matrix formalism. Our results show that the plasmon-polariton modes are considerably affected by the increasing of the Fibonacci-sequence order of the elementary cell. The loss of the long-range spatial coherence of the electromagnetic field along the growth direction, which is due to the quasiperiodicity of the elementary cell, leads to the splitting of the plasmon-polariton frequencies, resulting in a Cantor-type frequency spectra. Moreover, the calculated photonic dispersion indicates that if the plasma frequency is chosen within the photonic (n(w))=0 gap then the plasmon-polariton modes behave essentially as pure plasmon modes.

• Autores: Reyes Gómez, Ernesto Amador; Raigoza Bohórquez, Nicolás Fernando; Cavalcanti, Solange Bessa; de Carvalho, C. A. A.; Oliveira, Luiz Eduardo
• Tipo de recurso: Article of investigation
• Fecha de publicación: 2010
• Institución: Universidad de Antioquia
• Repositorio: Repositorio UdeA
• Idioma: eng
• OAI Identifier: oai:bibliotecadigital.udea.edu.co:10495/8400
• Acceso en línea: http://hdl.handle.net/10495/8400
• Palabra clave: Fibonacci; Plasmón; Polaritón; Metamateriales; Metamateriales fotónicos
• Rights: openAccess
• License: Atribución-NoComercial-SinDerivadas 2.5 Colombia